I'm currently looking for an Archlinux alternative suitable for production servers, which means less "bleeding-edge" software but otherwise it should be really as close to Arch as possible, here are the main requirements.
- the package manager shouldn't touch config files; I don't want any of this "setup wizard" black magic commonly found on Debian and Ubuntu server; it may be good for beginners but will do more harm than good in my case
- Arch-style manual installation, with a base system as minimal as possible, no extra services (imagine my sadness when I found out that CentOS installed about 10 services that weren't even applicable to my case as I wasn't running it in a VM nor using the specific RAID cards these services were designed to monitor)
- no NetworkManager nor Firewalld heresy. Seriously, this is a server, not a desktop machine and the default
iptables-saveis more than enough. Again, looking at you CentOS and RHEL.
- ready-to-use support for Docker or plain LXC; if possible via a package to install without compiling everything from source.
- common servers and languages (OpenSMTPd, Postfix, Dovecot, Nginx, PHP-FPM, MySQL/MariaDB, Node.js, Ruby, Python) should be available as packages
- SELinux or equivalent RBAC support